---
license: apache-2.0
datasets:
- wikitext
- ptb_text_only
language:
- en
metrics:
- perplexity
pipeline_tag: text-generation
model-index:
- name: distilgpt2
  results:
  - task:
      type: text-generation
    dataset:
      name: penn_treebank
      type: ptb_text_only
    metrics:
    - name: perlexity@BASELINE
      type: dmx-perlexity
      value: 63.45857238769531
    - name: perlexity@FALLBACK
      type: dmx-perlexity
      value: 64.36720275878906
  - task:
      type: text-generation
    dataset:
      name: wikitext2
      type: wikitext-2-raw-v1
    metrics:
    - name: perlexity@BASELINE
      type: dmx-perlexity
      value: 46.05925369262695
    - name: perlexity@FALLBACK
      type: dmx-perlexity
      value: 46.570838928222656
---
This is a quantized version of [DistilGPT2](https://huggingface.co/distilbert/distilgpt2). We provide the following two quantization configurations:

BASELINE: Everything in original format, equivalent to original model.

FALLBACK: Quantized Linear and Conv1D layers to BFP16. Added approximation functions for Layer Norm, GELU and Softmax.

### Usage Example

Prerequisites:
- Install dmx-mltools: "pip install dmx-mltools"
- clone this repo. "cd" to the cloned repo.
```python
>>> import os
>>> import torch
>>> from mltools import dmx
>>> from transformers import pipeline,AutoModelForCausalLM
>>> import evaluate
>>> from datasets import load_dataset

# Get model
>>> my_hf_token = os.environ.get("Dmatrix_HF_Token")
>>> device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")

>>> pipe = pipeline(
>>>     "text-generation",
>>>     model="d-matrix/distilgpt2",
>>>     device=device,
>>>     use_auth_token=my_hf_token,
>>> )
>>> pipe.model = dmx.Model(pipe.model,monkey_patched=False,hf=True,input_names=["input_ids", "labels"])

# Configure quantization formats
>>> pipe.model.transform('FALLBACK.yaml')

# Evaluate
>>> perplexity = evaluate.load("d-matrix/dmx_perplexity", module_type="metric")
>>> input_texts = load_dataset("ptb_text_only", "penn_treebank", split="test")["sentence"]
>>> pipe.model.eval()
>>> results = perplexity.compute(model=pipe.model.body,references=input_texts)
>>> print(results)
{'loss': 4.164604187011719, 'perplexity': 64.36720275878906}
```